Apparatus for fastening steel pail tops



f2 SHEET Y-SHEET1.

S. M. JOHNSON.

APPARATUS FOR FASTENING STEEL PAIL TOPS,

HLED1AN.5.1922.

m. www@ m wf 9 9 o m M j 8 M M D m J g M A7 im w -Ilm Q o 1 l n .w m 3 GP l E R 2 5 6 M 5f z Y 7 s m 6 E o i.: o v n o 9 W M .lv mzS 9 u Jan. 23, 1923.

Jam. 23, 1923.

S. IVI. JOHNSON.

APPARATUS FOR FASTENING STEEL PAIL TOPS.

1 SHEETS -SHEET 2- FlLED 1AN.5,1922.

A TTOHNEYS WTVESSES @H/iw Patented dan. 23, 1923.

STATES aurora SMITH MADISON JOHNSON, OF MIDDLEFIELD, OHIO.

APIARATUS FORA FASTENING STEEL PA'IL TOPS.

Application led January 5, 1922. Serial No. 527,192.

T 0 all whom t may cof/cern Be it known that I, SMITH MADIsoN JOHNSON, a citizen of the United States, and a resident of Middlefield, in the county of Geauga and State of Ohio, have invented certain new and useful Improvements in Apparatus for Fastening Steel Pail Tops, of which the following is a specification.

My invention relates to improvements in devices for fastening steel pail tops, and lit consists in the constructions, combinations and mode of operation herein described and claimed. 1

One of the objects of the'invention is to provide an apparatus for the purpose described,'including a base plate on which crimping jaws are mounted, and embodying means for holding the plate up so that the crimping edges of the jaws will come no lower than the edges of the lugs which are to be crimped under.

A further yobject of the invention is to provide an apparatus for the purpose described,-of such an arrangement that it can be set upon a pail and all of the lugs of the lid crimped under in one operation.

Other objects and advantages will appear in the following specification, reference being had to the -accompanying drawings, in which Fig. 1 is a plan view of the improved crimping apparatus,

Fig. 2 is a cross section taken substan tially on the'line y2--2 of Fig. 1,

Fig. 3 is a section similar to Fig. 2 but showing the crimping vjaws in the final position,

Fig. 4 is a somewhat enlarged section of a portion of Fig, 3, and

Fig. 5 is a detail perspective ViewL of one of the crimping jaws and the bracket on which it is mounted.

Theconstructionfcomprises a base plate 1 with'a standard 2 in the middle. The handle 3, sleeve 4 and circular flange 5 slide up and down on the standard. A number of rods 6 radiate from the flange 5 to which they are suitably connected by couplings 7 which include means 8 for the adjustment of the radius rods. This means comprises the threaded ends of the rods and the jam nuts which hold the position after adjustment.i

The lower ends of the radius rods are .bent at right angles to fit into holes in the upper ends of the arms 9 of the crimping jaws 10. -The bent ends are held in place by Cotter pins. The crimpingv jaws are pivoted at 11 to brackets 12 which are fastened on top of the base plate 1. The ends of the brackets are bent over the edge of the base plate so as to provide a pendent mounting for the crimping jaws. It'is to be observed that the pivotal point 11 is close to the aWs themselves.

The jaws extend on each side of the arm 9 so as to provide a suiiciently wide surface to insure an adequate contact with the lugs 13 of the cover C. The purpose of the invention is to bend the lugs 13 under the rim 14.'

Each of a plurality of brackets 15 on the base plate 1, carries a pin 16 which extends down through the base plate and is fastened to a ring 17. A spring 18 is fitted on eachl pin 16 between the top of the bracket 15 and a pin or washer 19 which is fitted across each pin slightly above the base plate l. 4The purpose of the springs 18 is to hold the base plate 1 up, and as a consequence, hold the crimping jaws 10 up so that they will come no lower than the edges of the lugs 13, as shown in Fig. 2. Were the crimping jaws permitted to come lower than the edges of the lugs, it can be readily seen that the crimping operation would be impaired. The provision of the springs 18 in the particular combination disclosed, is one of the important features of the invention.

The operation.

The apparatus normally assumes the po-v sition illustrated in Fig. 2. It is set down upon the cover O when it is desired to turn or crimp the lugs 13. It isrequired to exercise reasonable care to see that the crimping'jaws 10 fit the lugs. The springs 18' hold the crimping jaws 10 up so that they can move no farther than the edges of the lugs 13.

Having gotten the apparatus vin the proper position, the operator bears down on the handle 3, whereupon the handle, sleeve 4 and circular fiange 5 slide down on the standard 2, spreading the radius rods 6 outwardly and turning the arms 9 on their pivots 11. The downward pressure serves to force the cover O upon the pail rim 14 so that the usual rubber gasket is com- Y pressed from its normal round shape (Fi 2) to the final crescent shape (Fig. 3 The same downward pressure causes the edges'of the 1 s to be crimped under the rim 14 as Cleary shown in Fig. 4. In rermoving the apparatus from the pail, the

arms 9 return to the erect positions shown in Fig. 2, this b virtue ofthe pull on the handle 3 in li ting the devlce oif.

Mention should be made of the fact that 1. Apparatus for fastening pail coversl comprising ,a plate, jaws carried by said plate for bending cover lugs, and means exerting a force between said plateand thev cover for normally holdin the apparatus in position above the -rim of t e cover and keep the aws from taklng a position beyond the edges of the lugs.

r2. Apparatus for fastening pail covers comprising an element to bel set upon aA cover, means carried byy said element to engagethe cover lugs, and means having av foundation on the cover for holding said j element and consequently said'means in a nections to a plurality predetermined posltion in respect lto the@ r30 lugs. V-

f 3. Apparatus for fastening pail covers comprising a plate with a standard, brackets on whlch crimping jaws are pivoted, a'

handle slidable on the standard and having connection to s aid jaws enabling turning lall on their pivotsby moving the handle; and means for holding the plate up in respect to a cover to keep the jaws from slipping beyond the edges of lugs to be crimped.

4. Apparatus for fastening pail covers comprlsing a base plate with a standard, a handle slidable on the standard, with conof crimping jaws which are pivoted to the base plate, brackets on the plate receiv ing the upper ends of the pins, and a spring on each pin between the brackets and a washer on the pins.A

5. Apparatus for fastening pail covers comprising a plate, jaws carried by said plate for bending cover lugs, means exerting a Aforce between saidplate and the cover for rackets on the base I plate; a ringwith pins extending throughnormallj; holding the apparatus in position above t e rim of the cover and keep the jaws from taking a position ,beyond the edges of the lugs, and means forperforming the crimping operation simultaneously depressing the plate against said rim in opposition to said force and moving the jaws under the lugs.

6. Apparatus for fastening `pail covers comprising a plate, jaws carried by said plate for `bending cover lugs, means exerting a force between said plate and the cover for normally -holding the apparatus in position above the rim of the cover and keep the jaws vfrom taking a position beyond the edges of the lugs, and means carried by the plate by 'which a crimping operation is performed adapted to simultaneously depress the plate into contactwith said cover rim in opposition to said force and causing the jaws to turn the lugs under. v v

7. Apparatus for,l lfastening pail" covers Acomprising Vmeans to rest upon a cover, a

plate, jaws carried by said plate for bending cover-lugs, means using said resting means as a base to .exert a force on the lat-e to normally hold itabove the rim of t e cover and keep thejaws from taking a position beyond the edges of the lugs, and means carried by the plate and having connections to the jaws vadapted to simultaneously depress said plate against the cover rim in opposition to said force and cause the jaws to turn the lugs under.

8. Apparatus for fastening pail covers comprising means to rest upon a cover, a plate, -means carried by said resting means extending through the plate, means carried by the plate through which said extending means also pass, means exerting a force between said extending means and said platecarried means to normally keep the plate above the rim of the cover, jaws pivotally mounted on the plate and kept from taking a position beyond the edges of cover lugs by virtue of said position of the plate, and

means carried by the plate having connections to the jaws to simultaneously depress the plate into contact with the cover rim in opposition to said force and move the jaws on their pivots to turn the lugs under.

SMITH MADISON JOHNSON. 

